Evolutionary Origin
It is hypothesized that epicanthic folds are caused by climatic factors and it may have originated more than once during human evolution. Sexual selection may have also influenced the evolution of the trait. The genetic basis of the adaptation is not well known.
Read more about this topic: Epicanthic Fold
Famous quotes containing the words evolutionary and/or origin:
“The point is, ladies and gentlemen, that greed, for lack of a better word, is good. Greed is right. Greed works. Greed clarifies, cuts through, and captures the essence of the evolutionary spirit.”
—Stanley Weiser, U.S. screenwriter, and Oliver Stone. Gordon Gekko (Michael Douglas)
“Good resolutions are useless attempts to interfere with scientific laws. Their origin is pure vanity. Their result is absolutely nil. They give us, now and then, some of those luxurious sterile emotions that have a certain charm for the weak.... They are simply cheques that men draw on a bank where they have no account.”
—Oscar Wilde (1854–1900)